Sally Lightfoot Crab | 水產百科網

TheSallyLightfootCrablivesamongsttherocksattheoftenturbulent,windyshore,justabovethelimitoftheseaspray.Itfeedsonalgae,sometimessampling​ ...

The Sally Lightfoot Crab (Grapsus Grapsus) is also known as the ‘Red Rock Crab[1]‘. The Sally Lightfoot Crab is one of the most common crabs along the western coast of South America. It can also be seen along the entire coast of Central America and Mexico and nearby islands.

The Sally Lightfoot Crab is one of the many charismatic species that inhabits the Galápagos Islands and is often seen in photos of the archipelago, sometimes sharing the seaside rocks with the marine iguanas[2].

The Sally Lightfoot Crab is a typically shaped crab, with five pairs of legs, the front two bearing small, blocky, symmetrical chelae (chelae are also called pincers). The other legs are broad and flat, with only the tips touching the substrate.

The crabs round, flat carapace is just over 8 – 12 centimetres (3 – 5 inches) in length. They are rather...